SelectEntriesExtension extension

on

• SelectEntries

Properties

firstSelectedId → String?

Available on SelectEntries, provided by the SelectEntriesExtension extension

Returns the id of the first selected entry, or null when nothing is selected. Convenience accessor for single-selection tabs such as sort order.

no setter

Methods

cascadingPairsOf(String categoryId) → List<({List<String> childIds, String id})>

Available on SelectEntries, provided by the SelectEntriesExtension extension

Returns parent → child-id pairs for a cascading category (e.g. region/metro with districts and sub-districts).

childIdsOf(String categoryId) → List<String>

Available on SelectEntries, provided by the SelectEntriesExtension extension

Returns the ids of all direct children of the category with categoryId.

childRangesOf(String categoryId) → List<SelectRangeEntry>

Available on SelectEntries, provided by the SelectEntriesExtension extension

Returns all direct children of the category with categoryId that are SelectRangeEntry values (e.g. price/area ranges carrying min/max).

findCategory(String categoryId) → SelectEntry?

Available on SelectEntries, provided by the SelectEntriesExtension extension

Finds the first selected top-level entry (category) whose id matches categoryId, or null if no such category is selected.

findChildrenAtLevel(SelectEntry entry, int level) → Set<SelectEntry>

Available on SelectEntries, provided by the SelectEntriesExtension extension

Returns the child entries of entry located at the given tree level.

findExtrasAtLevel(SelectEntry entry, int level) → List<String>

Available on SelectEntries, provided by the SelectEntriesExtension extension

Returns the extra ids of the children of entry located at the given tree level.

findIdsAtLevel(SelectEntry entry, int level) → Set<String>

Available on SelectEntries, provided by the SelectEntriesExtension extension

Returns the ids of the children of entry located at the given tree level.

flatten() → List<SelectEntries>?

Available on SelectEntries, provided by the SelectEntriesExtension extension

Flattens a selection tree into a list of selections per depth level.

insert(int index, SelectEntry entry) → void

Available on SelectEntries, provided by the SelectEntriesExtension extension

Inserts entry at the given index while preserving set iteration order.

toQueryMap() → Map<String, List<String>>

Available on SelectEntries, provided by the SelectEntriesExtension extension

Converts this selection tree into a map of query keys to value lists, e.g. {cate1: [a, b], cate2: [c]}.

toQueryParameters({SelectArrayFormat arrayFormat = SelectArrayFormat.repeat, String delimiter = ',', bool encode = true}) → String

Available on SelectEntries, provided by the SelectEntriesExtension extension

Converts this selection tree into a URL query string such as cate1=a&cate2=b, with the multi-value layout controlled by arrayFormat.